{"paper":{"title":"Complex wavefront engineering via decoupled space-time modulation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"A metasurface doublet integrated with a photonic integrated circuit optical phased array decouples electrical modulation from the optical plane, enabling independent 2D control and a threefold reduction in effective pixel pitch for solid-","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Anna Wirth-Singh, Arka Majumdar, Johannes E. Fr\\\"och, Virat Tara","submitted_at":"2026-05-14T07:02:38Z","abstract_excerpt":"Solid-state Spatial Light Modulators (SLMs) are fundamentally limited in their ability to achieve high spatial complexity and high temporal bandwidth simultaneously. High-speed, low-energy modulation requires sub-wavelength active mode volumes, and sophisticated spatial wavefront engineering necessitates an ultra-fine pixel pitch. While small pixels can simultaneously solve both, in conventional architectures, the dense 2D electrical routing required for such pixels creates an insurmountable physical bottleneck. This results in a compromise between the SLM refresh rate, number of pixels and th"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"By integrating a metasurface doublet with a PIC-based OPA, we achieve independent 2D electrical control over each phase-element while simultaneously realizing a three-fold reduction in effective pixel pitch.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The metasurface doublet successfully decouples the electrical and optical planes without introducing unacceptable losses, phase errors, or crosstalk that would prevent the claimed independent control and pixel-pitch reduction.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"A metasurface-PIC hybrid decouples electrical control from optical output to achieve high-speed, high-resolution 2D wavefront engineering in solid-state SLMs.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"A metasurface doublet integrated with a photonic integrated circuit optical phased array decouples electrical modulation from the optical plane, enabling independent 2D control and a threefold reduction in effective pixel pitch for solid-","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"08ca331b5e106484e6be97b728d889026a52e1949219672984a3b2eaa46c404b"},"source":{"id":"2605.14468","kind":"arxiv","version":1},"verdict":{"id":"72f74745-0174-4c2d-9896-bae4bbbdb18f","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-15T01:59:55.011832Z","strongest_claim":"By integrating a metasurface doublet with a PIC-based OPA, we achieve independent 2D electrical control over each phase-element while simultaneously realizing a three-fold reduction in effective pixel pitch.","one_line_summary":"A metasurface-PIC hybrid decouples electrical control from optical output to achieve high-speed, high-resolution 2D wavefront engineering in solid-state SLMs.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The metasurface doublet successfully decouples the electrical and optical planes without introducing unacceptable losses, phase errors, or crosstalk that would prevent the claimed independent control and pixel-pitch reduction.","pith_extraction_headline":"A metasurface doublet integrated with a photonic integrated circuit optical phased array decouples electrical modulation from the optical plane, enabling independent 2D control and a threefold reduction in effective pixel pitch for solid-"},"references":{"count":5,"sample":[{"doi":"10.1038/s41467-022-33450-2","year":2022,"title":"Metasurface-enhanced light detection and ranging technology,","work_id":"aa1ac930-c5a9-48d5-b12e-40a525f68650","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"10.1021/acs.nanolett.5c03023","year":2025,"title":"Electrically Reconfigurable Nonvolatile Flatband Absorbers in the Mid-Infrared with Wide Spectral Tuning Range,","work_id":"3e2bcd25-01a2-4548-8060-8f1ae0060a0b","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"10.1021/acsnano.5c18915","year":2026,"title":"Electrically Tunable Optofluidic Metasurface,","work_id":"0db8e6e1-1fd6-4230-99b7-6992be1acaf4","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"10.1038/s41566-023-01354-2","year":2024,"title":"Generating free-space structured light with programmable integrated photonics,","work_id":"d752437d-acd4-46ca-83f3-70b0b98994ae","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"10.1021/acsphotonics.5c03060","year":2026,"title":"All-Dielectric Metasurface with a Two-Dimensional Locally Flat Photonic Band,","work_id":"39352592-91da-4376-ac08-dc9a22256ffb","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":5,"snapshot_sha256":"925a72b354154e9d1afcc6d7c61f2f810f7fae2e83ea70d23a944506734d69af","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}